Perhaps you should try some spelling variations:
than vien » thanh vien, nhan vien, than viet
chat soc » cham soc, chat hoc, chat doc
ban than » ban thanh, van thanh, ban hang
vien cua » viec cua, dien cua, tien cua
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
soc ban » hoc ban, coc ban, so ban
sac ky » cac ky
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) or (sai ky)) nang ma hoi. hieu ve chat soc ban than vien cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sai ky)) nang ma hoi. hieu ve chat soc ban than vien cua tu.
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) or (sai ky)) nang ma hoi. hieu ve chat soc ban than vien cua tu*.